There are total 13 hours or 780 minutes from 7am to 8pm. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 1AM to 2AM | 3PM to 5AM | 9PM to 8PM |
| 2AM to 5AM | 12PM to 11AM | 9PM to 3PM |
| 8AM to 10PM | 2PM to 4AM | 7PM to 6AM |
| 9AM to 3PM | 11AM to 6PM | 3PM to 8PM |
| 1PM to 4PM | 12AM to 11PM | 5AM to 4AM |
| 4PM to 10AM | 1AM to 3AM | 12AM to 10PM |
